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faltersainse [42]
3 years ago
15

3ln(2x) + 7 = 15. how do I do this​

Mathematics
1 answer:
andrey2020 [161]3 years ago
5 0

Answer:

Step-by-step explanation:

3 ln(2x) + 7 = 15            Subtract 7 from both sides

3 ln(2x)  = 15 - 7            Combine

3 ln(2x) = 8                    Divide by 3

  ln(2x) = 8/3                Do the division. Take the antilog of both sides.

e^ln(2x) = e^(8/3)

2x = 14.392                   Divide by 2

x = 14.392

x = 7. 196

 

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U is the midpoint of TV. If TU = 2x and UV = x + 9, what is TU?
igor_vitrenko [27]
Gggvvvvvdddddddhhhhdhwss
3 0
3 years ago
20 points
Lubov Fominskaja [6]

Answer:

1/3

Step-by-step explanation:

Slope = ( y₂ - y₁ ) ÷ ( x₂ - x₁ )

y₂ = 9

y₁ = 7

x₂ = 4

x₁ = -2

y₂ - y₁ = 9 - 7 = 2

x₂ - x₁ = 4 - -2 = 6

2 ÷ 6 = 1/3

3 0
3 years ago
ILL GIVE BRAINIEST
aleksley [76]

Answer: y=5x/2 - 2.5

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(-2.5-2.5)/(0-2)

m=-5/(-2)

m=5/2

y=mx+b

y=5x/2 + b

-2.5=5(0)/2 + b

-2.5=0 + b

b=-2.5

y=5x/2 - 2.5

4 0
1 year ago
Read 2 more answers
The population in the trapezoid-shaped region shown is about 3000 people. How many people are there per square mile?
Anastasy [175]

Answer: \frac{3,000}{A}

Step-by-step explanation:

<h3> Since the figure is not attached, below you can see a general explanation of the procedure to solve the exercise: </h3>

For this exercise you can apply the following formula, which is used to calculate the area of a trapezoid:

A=\frac{h(B+b) }{2}

Where  "B" and "b" are the bases of the trapezoid and "h" is the height.

So, substituting values into the formula and evaluating, you can find the area of  trapezoid-shaped region.

Since the population in the trapezoid-shaped region is about 3,000 people, you can find the number of people per square mile dividing the population by the area of the region.

Then, the following expression represents the number of people per square mile in that region:

\frac{3,000}{A}

7 0
3 years ago
Read 2 more answers
11. Benito and Tyler are painting opposite sides of the same fence that is 150 feet long. Tyler has already painted 19.5
stiv31 [10]

Answer:

(a) 4.875 minutes

(b) 1.86 minutes

Step-by-step explanation:

The length of fence = 150 feet.

Rate of painting by Tyler = 11ft/min

Rate of painting by Benito = 15ft/min

(a) Let after time t minutes  both have painted equal number of feet.

As Taylor has already painted 19.5 feet. So,

15t=19.5+11t

\Rightarrow 4t=19.5

\Rightarrow t=\frac{19.5}{4}

\Rightarrow t=4.875 minutes.

(b)The length of fencs to be painted by Tylor=150-19.5=130.5 feet.

So. time taken by Tylor to finish the painting

=\frac{130.5}{11}=11.86 minutes.

Time taken by Benito to finish the painting

=\frac{150}{15}=10 minutes

Here, tome taken by Benito is less, so Benoto finishes first.

Benoto will get the time to rest for 11.86-10=1.86 minutes.

8 0
4 years ago
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